Arch for locomotive fire-boxes.



. L. HITCHCOCK.

ARCH FOR LocoMoTlVE FIRE Boxes.

APPLICATION FILED MMLZZ. 1915.

Paellted July 1915.

2 SHEETS-SHEET 1.

/NVENTOR WCOCK.

le'mlted July 6, 1915.

2 SHEETS-SHEET 2. ...iS/

HIT(

ARCH .un LOCOMQHVE mi BOXES.

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'WILLIAM L. HITCHCOCK, OF PORTSMOUTH, OHIO.

ARCI-I FOR LOCOMOTIVE FIRE-BOXES.

Specification of Letters Patent.

Patented July 6, 1915.

Application filed Miarch 22, 1915. Serial No.`16,142.

Be it known that l, lViLLrAM L. HITCH? (foon, -a citizen of the United States, and a resident of Portsmouth, in the county ot' Scioto and State ot Ohio, have invented certain new.k and useful Improvements in Arches for Locomotive Fire-Boxes; and l do hereby declare the following to be a'full, clear, and exact description of the invention, such will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in arches for locomotive lire boxes, and consists in certain novel features of construe,- tion and combinations of parts as hereinafter set forth and pointed out in the claims.

ln the accompanying drawings, Figure 1 is a plan View showing the arch supported on the arch tubes; Fig. 2 is an end View; Fig. 3 is a sectional view on the line 3*?3 of Fig. 1; Fig. is a section on the line 1 4 of 1,' Figs. 5, 6 and 'Y are enlarged plan, side and end views respectively of one of the central series 3 of bricks; Figs. 8, Qand 10 are similar views of one of the bricks of series -1 and Figs. 11, 12 and 13 are similar views of one ol the side series 5 of bricks.

ln Figs. 1 and 2 ot the drawings four arch tubes, 1, 1 and 2, 2 are shown and extend upwardly from the flue sheet at the front of the fire box to the rear water leg and are in open communication with the boiler at both ends. The arch rests upon the arch tubes, and is composed, in the present instance, of several series of bricks as indicated at 3, ./l, Il. and 5 block 6 having upper beveled faces 7 located. upon each arch tube below the' several series of bricks and overlap the lower side edges of the lower bricks of adjacent series. The bricks are made sulilciently small to permit them to be readily passed through the door of the lireboX, and when all the series of bricks shall have been assenirbled 'upon the arch tubes, the arch thus iormed will extend approximately from one side sheet 8 to the other. The bricks of each serios may be made with il at upper faces and each brick is made on its under side with two beveled faces 9, l?, which con- *verge under and parallel with the longitudinal axis of the brick, so that when all the bricks ot the arch are assembled, transverse channels 10 will. be `termed to deflect gases and products of combustion laterally. Each brick 11, of each series 3, 11: is made with curved recesses 13 which form seats for these bricks upon the arch tubes 1, 2, and the in ner ends of the bricks 151. of each series 5 are similarly provided with curved recesses 15 to atl'ord seats upon the arch tubes 2. The outer end of each brick 14.- oi' each series 5 is made with ,converging beveled faces 16, so that channels 17 will be formed between the outer ends of adjacent bricks 1st and the side-sheets 8. 1

Respective ends of each brick 11 of the central series 3 and the inner end of each brick 12 of the series 4, may be beveled as at 18, above thelower recessed or seat portions, and the outer ends of the bricks 12 of each series f1 are ma de with V -shaped sockets 19, into which similarly shaped tongues 2O at the inner ends oi. the bricks 14 of each series 5 interlocks,-said interlocking ends of the bricks of series /1 and 5 being located directly over the arch tubes 2, 2.

Each brick of each series is formed at one -side edge with a longitudinal recess 21 and at the other side edge with a longitudinal flange 22, so that the bricks of a series will overlap or lap-joint each other, the flange 22 of one brick entering the recess 21 of an acent brick. By thus causing the bricks of each series to intermesh by forming lap joints, they will become fused together, thereby so iirmly limiting the several bricks of each series, that each series of bricks can be moved only en masse, so that no brick can fall out of place, nor can a brick be removed Without removing entire series. Each series 4l of welded bricks will become welded to the adjacent series 5 of Welded bricks.

lVith the construction of arch herein shown and described, no defective brick can fall out, and will permit removal of a pou tion ofthe side water bar without endangering the support of the arch bricks as a whole.

Having fully described my invention what l claim as new and desire to secure by la ters-Patent, is

1. The combination with the side walls of a locomotive fire box, anda group of arch tubes, oi: se v eral rows of arch bricks, the bricks oi the side rows having converging end faces coperating with the side walls of the lire box to iorm upwardly extending channels leading to the space above the arch, and the bricks et the several rows each having con verging bottom faces, the converging bottom faces of the bricks of one row coperating the bricks, of: said side rows seated at their, inner ends upon @WQ of the arch. tubes, the# bricks of dieether rows having Seats at re- Spetive ends resting on the various arch Q e o 1,145,769

tubes, the several bricks of each row each having a fiange at one longitudinal edge and a recess at the other longitudinal edge, with the iange of one brick resting in the recess of the adjacent brick of the row, and all of bricks of. the several rows having beveled fafzes converging below the'bodies of the br'ioks and parallel with the longitudinal axes, of the bricks, and forming transverse channels communicating with said upright channels.

In testimony whereof, I have signed this specification in the presence of two subscribing witnesses. i

' -WILLIAM L. HITCHCOCK. Witnesses:

' W. B. HITCHCOCK,

L. L. HITCHCOCK. 

